Race Face BSA30 Bottom Bracket Tool Whether you're servicing your bottom bracket or you're replacing a worn-out bottom bracket, you're going to need a special tool to take it off. There are many different bottom bracket standards, so you'll need a tool that specifically fits your model of bottom bracket. The Race Face BSA30 Bottom Bracket Tool will ensure proper installation and removal of Race Face Cinch BSA30 threaded external cup bottom brackets for 30mm spindle Cinch cranks. Features Designed to install the Race Face Cinch BSA30 bottom bracket12 notch and 46mm bottom bracket tool | Race Face | Bsa30 Bottom Bracket Tool For Race Face | Bsa 30 Bottom Bracket